update go to go1.20.6

go1.20.6 (released 2023-07-11) includes a security fix to the net/http package,
as well as bug fixes to the compiler, cgo, the cover tool, the go command,
the runtime, and the crypto/ecdsa, go/build, go/printer, net/mail, and text/template
packages. See the Go 1.20.6 milestone on our issue tracker for details.

https://github.com/golang/go/issues?q=milestone%3AGo1.20.6+label%3ACherryPickApproved

Full diff: https://github.com/golang/go/compare/go1.20.5...go1.20.6

These minor releases include 1 security fixes following the security policy:

net/http: insufficient sanitization of Host header

The HTTP/1 client did not fully validate the contents of the Host header.
A maliciously crafted Host header could inject additional headers or entire
requests. The HTTP/1 client now refuses to send requests containing an
invalid Request.Host or Request.URL.Host value.

Thanks to Bartek Nowotarski for reporting this issue.

Includes security fixes for [CVE-2023-29406 ][1] and Go issue https://go.dev/issue/60374

[1]: https://github.com/advisories/GHSA-f8f7-69v5-w4vx

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 680fafdc9c)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.github/workflows/test.yml

@@ -63,7 +63,7 @@ jobs:
         name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: 1.20.5
+          go-version: 1.20.6
       -
         name: Test
         run: |

Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 ARG BASE_VARIANT=alpine
-ARG GO_VERSION=1.20.5
+ARG GO_VERSION=1.20.6
 ARG ALPINE_VERSION=3.17
 ARG XX_VERSION=1.2.1
 ARG GOVERSIONINFO_VERSION=v1.3.0

docker-bake.hcl

@@ -1,5 +1,5 @@
 variable "GO_VERSION" {
-    default = "1.20.5"
+    default = "1.20.6"
 }
 variable "VERSION" {
     default = ""

dockerfiles/Dockerfile.dev

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.20.5
+ARG GO_VERSION=1.20.6
 ARG ALPINE_VERSION=3.17
 
 ARG BUILDX_VERSION=0.11.0

dockerfiles/Dockerfile.lint

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.20.5
+ARG GO_VERSION=1.20.6
 ARG ALPINE_VERSION=3.17
 ARG GOLANGCI_LINT_VERSION=v1.52.2
 

dockerfiles/Dockerfile.vendor

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.20.5
+ARG GO_VERSION=1.20.6
 ARG ALPINE_VERSION=3.17
 ARG MODOUTDATED_VERSION=v0.8.0
 

e2e/testdata/Dockerfile.gencerts

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.20.5
+ARG GO_VERSION=1.20.6
 
 FROM golang:${GO_VERSION}-alpine AS generated
 RUN go install github.com/dmcgowan/quicktls@master